Add client lifecycle and annotation regression tests

Co-authored-by: Shri Sukhani <shrisukhani@users.noreply.github.com>

Author: cursoragent

tests/test_client_lifecycle.py

@@ -0,0 +1,38 @@
+import asyncio
+
+from hyperbrowser.client.async_client import AsyncHyperbrowser
+from hyperbrowser.client.managers.async_manager.session import SessionEventLogsManager
+from hyperbrowser.client.sync import Hyperbrowser
+from hyperbrowser.models.session import SessionEventLogListResponse
+
+
+def test_sync_client_supports_context_manager():
+    client = Hyperbrowser(api_key="test-key")
+    close_calls = {"count": 0}
+    original_close = client.transport.close
+
+    def tracked_close() -> None:
+        close_calls["count"] += 1
+        original_close()
+
+    client.transport.close = tracked_close
+
+    with client as entered:
+        assert entered is client
+
+    assert close_calls["count"] == 1
+
+
+def test_async_client_supports_context_manager():
+    async def run() -> None:
+        async with AsyncHyperbrowser(api_key="test-key") as client:
+            assert isinstance(client, AsyncHyperbrowser)
+
+    asyncio.run(run())
+
+
+def test_async_session_event_logs_annotation_is_response_model():
+    assert (
+        SessionEventLogsManager.list.__annotations__["return"]
+        is SessionEventLogListResponse
+    )